Oil-pumping apparatus.



En 157,499. PATENT'BD ABR., 19. 1904.l

c1.'y Mmmm.

ou. PUMPING APPARMBS.

APPLNMIQN. ELLE MAY 2s.' moo.

Ho- MODEL ag w?? mon/vn.

` Patented Aprl'lQ, 1904.

Artur -rrrcn esiusoit QF` vEnmarifoon v PARK, PENNSYLVANIA, AssIeN'oRi yTo WESTJLNGHOUSE MAcmNnjcoMPAupA conPoRATioN or PEN-N- i :e f effaenncrmearron forming part of Letten Patent no. 757,499, usted nprii 1e, 19021.

. Apparatus, of 'which the following -is a speci-v ."f 13eit`known'th'at-I, Ovens RoBrNsoN,

jectof the Queen of Great Britain, residing 'appuauomgd my ze, 190e. To' LZ1/whom my concern: i' d a subat EdgewodParkn the c'ountyof Allegheny and;State.'oPennsylvania, have invented a new and us'efnl improvement in, Oil-Pumping.

catioi1. ,-My inventionrelates to oil-Pumping appa" and particular reference to pumps employed for supplying 'oil' to'steamjsupply .l Vpipes and cylinders ofsteamfengines forlubr'ieating purposes, though vnot necessarily restricted to this use.

The .object 'of 4' y ,invention is to provide a pumping apparatu'swhich 'shall be simple and compact in' construction and eilicent in operationand also onewhichv will permit ofa .ready inspectiontodetermine whether or not casting.

pump-piston. U 1 n'theaccompanying drawings, Figure 1 is Each piston-stem 5' -the pump is properly performing itsfnnctions andan easy-adjustment of the strokof the a view-,.p2.rtially in end elevation and partially in section-ot my pumping apparatus and the part of; the steam-engineto which itis attached. Fig. 2 is a view, mainly in plan,but partially in section, 1. Fig. -3 is a vertical sectionalview of onehalf of the pump shown in Figs. land 2, and

Fig. 4 is a detail sectional view of a valve for one of the oil-pipes.

'The details of construction as shown in the drawings are as follows:

The pumping apparatus 1 comprises an oil tank or receptacle 2, a casting 3,'either formed integral with the tank 2 or bolted thereto, and the operating parts mounted on said tank and As shown', the'pump comprises two cylinders 4, in which operate the pistons 5 through suitable stuing-boxes 6. The stems 5 of the pistons 5 are mounted-in the'ends of a suitable cross-head 7, having'a guide-rod 8,'

that moves in a guide-socket in the casting 3. is enlarged below the cross-head to form a shoulder 9, and the portion that projects above the v'cross-head is screw-threaded and provided with nuts 10, the adjustment of which on the stem wil'proof the parts shown in Fig.

sayin no. 17.774. (no @anni vide more orless lost motion between the piston and the head 7, and thus vary the length of stroke of the pistons. The oil is drawn from the tank into the cylinders 4 through passages 11 and valve-chambers 12 and 13, ball check. valves 14 and 15 being located, respectively, in thechambers 12 'and13 to prevent backflow of oil when the pistons descend. The oil drawn from the tank into the cylinders 4 'by the 4upward movement of the pistons 5 is forced out by the downward movement of' the pistons through passages 16 and 17, valve-chambers 18 and 19, and pipes 2O and 21, all of the passages, valves, valve-chambers, &c., being duplicated on the two sides of the guide-rod 8 for the cross-head 7 The valve-chamber 18 contains a ball check-valve 22 for preventing backow of oilfwhenthe corresponding piston moves upward. The valve-'chamber 19 contains a valve 23 and has' transparent side walls, preferably in the form of a glass tube 24, this tube being set iii a metal casing 25, cut away""at one side, as indicated at 26, so that the flow of oil may .be determined by inspection. Since the oil employed is generally of dark color and the valve 23 is in contact with theglass walls of the chamber at a' plurality of points, the movement of. the valve in the chamber may be readily seen.

4 When the double apparatus shown in the drawingsl is employed, either the pipe 20 or the pipe 21 may lead to the engine-cylinder land the otherl to the steai-inletpipe. As-

suming that the pipe 21 lleads to the enginecylinder, if the engine is of the condensing type the pipe 21, leading to its cylinder, will be provided with a check-valve 21, so as to provide aVA positive pressure against the action of the pump, and thus insure the proper operation of the other valves. l

As a means for operating the cross-heads Iy providea rock-shaft27, mounted in suitable bearings 28 on' the casting or framework of the apparatus, one end of'this shaft being .connected to the cross-head 7 by means of a crank-arm 29 and a link or pitman 30. They rock-shaft 27 is actuated from a moving part ofthe engine- -such as, for example, the wristf plate 31e-through a rod 32 and an arm 33, one

end of the latter being pivoted to the rod 32 and the other end rigidly joined to the rockshaft 27.

It will be-readily understood from the foregoing description of the apparatus that the rotation of the wrist-plate will serve to rock the shaft 27, and thus alternately raise and depress the pistons 5, that as 'the pistons are raised the oil will be drawn into 'the cylinders from the tank by suction, and that when a further movement of the Wrist-plate depresses thefpistons the oil will be forced from the cylinders through the passages 16 and 17, valvechambers 18 and 19, and pipes 20 and 21.` As the oil is forced through the chambers 19 it will move the valves 23 upward, this movement being readily seen through the sightopenings 26 and the glass walls of the valvechaxnbers. When the pistons are again raised, gravity and the back pressure of steam'will force the valves 23 downward to their seats.

lis a desirable and valuable feature, for the reasonvthat it enables the user of the apparatus to readily and instantly determine by asimple inspection Whether the apparatus is in order and properly supplying lubricating material to the engine.

For the purpose of enabling the user of the apparatus to readily ascertain at any time the amount of oil in the reservoir 2 I provide a sight-glass 34 of usual construction and function.

I desire it to be understood that my invention is not limited to the details of the construction shown and described, since various' changes may be made therein without materially modifying the mode of operation or the result obtained.

1 claim as my invention- 1. The combination with an oil-reservoir, of a pump-cylinder communicating with said reservoir by means of a valved passage, a piston operating in said cylinder, a dischargepipe communicating with said cylinder by a valved passage and an interposed transparent tube containing va `freely-movable device,A the movement of which indicates the iow -of oil.

2.. The combination with an oil-reservoir and a cylinder communicating therewith, of a ypiston operating in said cylinder, operating or passage through which the oil passes, having a transparent section and a movable indicator located in the transparent section and actuated by the oil forced therethrough.

4. The combination with an oil-reservoir and a series'of connecting-passages leading therefrom, of a piston and check-valves coperating to draw oil through the first of said pas'- 70- sages and to force it through the succeeding passages, one of which has a transparent section and a movable device in said transparent section that is actuated by the flow of oil to afford a visible indication thereof.

5. A sight-feed for a force-feed lubricator, comprising in combination,an oilduct,atrans 'l parent portion thereof, and a movable indicator contiguous to said transparent portion, moved by the movement of the oil, and adapt- 80 ed by its position to indicate the flow or noniow of the oil, substantially as set forth.

In testimony whereof I have hereunto subscribed my namev this 16th day of May, 1900.

CYRUS ROBINSQN.

'itnesse's:

A. BrGRANGE, 'JAMES B. YOUNG. 

